For comparison, the audience of Hotmail, rebranded now as Outlook.com, grew a modest 1%; Gmail added 18%; and the Yahoo! webmail audience grew 4%. So, the two Russian companies demonstrated in June the fastest year-on-year unique visitor growth in the European continent, Cnews reports citing a comScore study.

The time of stay at each of the two Russian services also reportedly increased in June. With Mail.Ru it was up 15%, and up a hefty 58% with Yandex.Pochta. For comparison, with Hotmail it was down 14%; up just 7% with Gmail; and Yahoo! showed a healthy growth of 29%. However, the average stay at a webmail interface shrank in Europe by 6% y/y to 106.4 minutes, the study says.